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Combined display of all available logs of Quadriga Initiative Cryptocurrency Hacks, Scams, and Frauds Repository. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).

• 21:46, 27 January 2023 Azoundria talk contribs created page Polygon Double Spend Vulnerability (Created page with "{{Imported Case Study|source=https://www.quadrigainitiative.com/casestudy/polygondoublespendvulnerability.php}} thumb|PolygonThe Polygon bridge allows users to cash funds from the Polygon side-chain back to Ethereum. As part of this mechanism, a smart contract hot wallet checks to see proof that the Polygon tokens are accurate. This smart contract hot wallet had a vulnerability where the same proof could be submitted up to 223 times, to withdraw 223...")